Went to a massage parlor and thought I was in for the usual R&T, which is all that I wanted. At the end she got on top of me and started rubbing her vagina on my penis, that was all well and good because I know the risks of that are quite low, but then, without asking or warning, she slid down on my penis. Was only in for about 15 seconds before pulling out. FREAKED me the hell out. What's the risk here?